clang complained about a missing include and wrong fprintf use. Change-Id: Idc023b653e694147c624d5f8f9ed3b797c462e9f Signed-off-by: Patrick Georgi <patrick@georgi-clan.de> Reviewed-on: http://review.coreboot.org/1067 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com> Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>